Chapter 13: Fun with Magnets

Ans: The correct answer is option (d): In A, cars 1 and 2 will come closer to each other and in B, 3 and 4 will move away from each other. 

If the magnets on vehicles 1 and 2 are facing each other with opposite poles, the cars will be attracted. If the magnets on cars 1 and 2 are facing each other with the same poles, the cars will repel each other. In scenario B, the magnets on vehicles 3 and 4 will repel each other because they have the same pole.

Ans: The correct answer is option (b). 

Two magnets placed on either side of the wooden block with opposite poles are correct to keep magnets.

Ans: The correct answer is option (a) A > B > C. 

The more the strength of the magnet, the more will be the iron filings stuck to it.

Ans: The correct answer is option (a) another magnet having its poles marked as the North Pole and the South Pole.

If another magnet with the north pole is brought closer, the first magnet will repel it, and thus North pole can be identified.

Ans: The correct answer is option (a) North Pole is almost equal to the South Pole. 

The strength of a magnet is identical on both poles.